The cost of an Honda Denso Alternator is about £300 from Honda.
The cost of a scrap one is £60 worn to an unknown extent.
The cost of two new bearings and brushes is going to be about £20, so you know that it is definitely worth doing this job yourself.

Amazon Laser 3406 Spanner - Extra Long Ring 33cmx12mm X 14mm will also do the job at about £19
https://www.amazon.co.uk/dp/B0039ULTS...


Woko Polish Bearing: https://www.ebay.co.uk/itm/B15-69D-Al...

German Bearing: https://www.ebay.co.uk/itm/Bearing-FE...

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